Userexitd for TSM 0.4

Userexitd for TSM is a configurable handler for Tivoli Storage Manager events.
Userexitd for TSM allows an administrator to filter events using regular expressions and run various actions for TSM events, such as sending mail and SNMP traps, writing messages into syslog, and running scripts and programs.
This software consists of two parts: a simple shared library (userexit.so), which is dynamically linked to the TSM Server as a user exit and communicates using a socket with the userexitd daemon, which runs as a separate service. The daemon is configured with an XML configuration file.
Enhancements:
- This release features some code cleanup, a working AIX port, support for reloading configuration on SIGHUP